glibc/sysdeps/mach/hurd/htl/pt-mutex-timedlock.c
Paul Eggert 581c785bf3 Update copyright dates with scripts/update-copyrights
I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 7061 files FOO.

I then removed trailing white space from math/tgmath.h,
support/tst-support-open-dev-null-range.c, and
sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following
obscure pre-commit check failure diagnostics from Savannah.  I don't
know why I run into these diagnostics whereas others evidently do not.

remote: *** 912-#endif
remote: *** 913:
remote: *** 914-
remote: *** error: lines with trailing whitespace found
...
remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
2022-01-01 11:40:24 -08:00

91 lines
2.5 KiB
C

/* pthread_mutex_timedlock. Hurd version.
Copyright (C) 2016-2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <pthread.h>
#include <stdlib.h>
#include <assert.h>
#include <pt-internal.h>
#include "pt-mutex.h"
#include <hurdlock.h>
int
__pthread_mutex_clocklock (pthread_mutex_t *mtxp,
clockid_t clockid,
const struct timespec *tsp)
{
struct __pthread *self;
int ret, flags = mtxp->__flags & GSYNC_SHARED;
switch (MTX_TYPE (mtxp))
{
case PT_MTX_NORMAL:
ret = lll_abstimed_lock (mtxp->__lock, tsp, flags, clockid);
break;
case PT_MTX_RECURSIVE:
self = _pthread_self ();
if (mtx_owned_p (mtxp, self, flags))
{
if (__glibc_unlikely (mtxp->__cnt + 1 == 0))
return EAGAIN;
++mtxp->__cnt;
ret = 0;
}
else if ((ret = lll_abstimed_lock (mtxp->__lock, tsp, flags, clockid)) == 0)
{
mtx_set_owner (mtxp, self, flags);
mtxp->__cnt = 1;
}
break;
case PT_MTX_ERRORCHECK:
self = _pthread_self ();
if (mtx_owned_p (mtxp, self, flags))
ret = EDEADLK;
else if ((ret = lll_abstimed_lock (mtxp->__lock, tsp, flags, clockid)) == 0)
mtx_set_owner (mtxp, self, flags);
break;
case PT_MTX_NORMAL | PTHREAD_MUTEX_ROBUST:
case PT_MTX_RECURSIVE | PTHREAD_MUTEX_ROBUST:
case PT_MTX_ERRORCHECK | PTHREAD_MUTEX_ROBUST:
self = _pthread_self ();
ROBUST_LOCK (self, mtxp, lll_robust_abstimed_lock, tsp, flags, clockid);
break;
default:
ret = EINVAL;
break;
}
return ret;
}
weak_alias (__pthread_mutex_clocklock, pthread_mutex_clocklock)
int
__pthread_mutex_timedlock (pthread_mutex_t *mutex,
const struct timespec *tsp)
{
return __pthread_mutex_clocklock (mutex, CLOCK_REALTIME, tsp);
}
weak_alias (__pthread_mutex_timedlock, pthread_mutex_timedlock)
hidden_def (__pthread_mutex_timedlock)